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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) August 29, 2016

Spin Dynamics and Establishing of Internal Quasi-Equilibrium in Dilute Paramagnetic Solids

Vadim A. Atsarkin and Fridrikh S. Dzheparov

Abstract

A brief review is given of the development and experimental verification of the two-temperature quasi-equilibrium concept as applied to EPR in dilute paramagnetic solids. Existing experimental data on spectral diffusion in a dipolar broadened EPR line and excitation transfer inside the electron dipolar reservoir are newly considered. The discussion is supplemented with theoretical arguments based on the concentration and cluster expansion techniques. Conditions and limitations of applicability of the two-temperature quasi-equilibrium model to electron spin systems with random distribution of paramagnetic centers are cleared up.


Dedicated to: Kev Salikhov on the occasion of his 80th birthday.


Funding source: Russian Foundation for Basic Research

Award Identifier / Grant number: 14-02-00165

Funding statement: The work was partially supported by the Grant from Russian Foundation for Basic Research (RFBR) 14-02-00165.

Acknowledgments

The work was partially supported by the Grant from Russian Foundation for Basic Research (RFBR) 14-02-00165.

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Received: 2016-6-14
Accepted: 2016-7-18
Published Online: 2016-8-29
Published in Print: 2017-3-1

©2017 Walter de Gruyter GmbH, Berlin/Boston

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